view test/integer.tst @ 28236:5bb1c0cbb27e

dec2bin.m: Allow negative number inputs (bug #58147). * dec2bin.m: Document that negative numbers are converted according to 2's complement convention. Add example to documentation of converting a negative number. Add algorithm to detect negative inputs and add the appropriate offset for 2's complement notation. Add BIST tests.
author Nicholas R. Jankowski <jankowskin@asme.org>
date Wed, 22 Apr 2020 15:53:51 -0700
parents bd51beb6205e
children d5f9c8911090 0a5b15007766
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## Test saturation mechanics of lower bound
%!test
%! for cls = {"int8", "uint8", "int16", "uint16", "int32", "uint32", "int64", "uint64"}
%!   clsmin = intmin (cls{1});
%!   xplus = clsmin + (-1);
%!   assert (xplus, clsmin);
%!   xminus = clsmin -1;
%!   assert (xminus, clsmin);
%!   xmult = clsmin * 2;
%!   assert (xmult, clsmin);
%!   xdiv = clsmin / 0.5;
%!   assert (xdiv, clsmin);
%! endfor

## Test saturation mechanics of upper bound
%!test
%! for cls = {"int8", "uint8", "int16", "uint16", "int32", "uint32", "int64", "uint64"}
%!   clsmax = intmax (cls{1});
%!   xplus = clsmax + 1;
%!   assert (xplus, clsmax);
%!   xminus = clsmax - (-1);
%!   assert (xminus, clsmax);
%!   xmult = clsmax * 2;
%!   assert (xmult, clsmax);
%!   xdiv = clsmax / 0.5;
%!   assert (xdiv, clsmax);
%! endfor